@media screen and (max-width: 750px) {
  html {
    font-size: 13.33333333vw;
  }
  .nav {
    background: #fff;
  }
  img {
    display: block;
    width: 100%;
  }
  /**********************automotive**********************/
  .page-automotive__video {
    margin: 0;
    height: auto;
    padding: 1rem 0 0.8rem;
    display: block;
    width: 100%;
    background-image: none;
    background: #081024;
  }
  .page-automotive__video .col-left {
    width: 5.55rem;
    height: 5.31rem;
    margin: 0 auto;
  }
  .page-automotive__video .col-right {
    margin: 0.58rem auto 0;
    width: 6.3rem;
    height: auto;
  }
  .page-automotive__video .col-right .index1_bg2_video {
    height: 3.54rem;
  }
  .page-automotive__video .col-right h3 {
    padding-top: 0.23rem;
    font-size: 0.28rem;
    font-weight: 500;
  }
  /**********************四大优势**********************/
  .section-advantage {
    padding: 1rem 0 0 0;
  }
  .section-advantage .inner {
    flex-wrap: wrap;
    margin-top: 0.6rem;
    padding: 0 0.15rem;
  }
  .section-advantage__title {
    font-weight: 700;
    font-size: 0.4rem;
    padding: 0 0.2rem 0.23rem;
    line-height: initial;
    margin: 0 auto;
  }
  .section-advantage__item {
    padding: 0.28rem 0.15rem;
    width: calc(50% - 0.1rem);
    margin: 0 0.1rem 0.6rem 0 !important;
    height: 4.1rem;
    margin-right: 0;
    background-image: url(../images/m/automotive-video-normal.png);
    background-size: 100% 100%;
  }
  .section-advantage__item h3 {
    font-size: 0.36rem;
    line-height: 0.36rem;
    margin-bottom: 0.2rem;
  }
  .section-advantage__item .content {
    font-size: 0.24rem;
    line-height: 0.32rem;
  }
  .section-advantage__item .content p + p {
    margin-top: 0;
  }
  .section-advantage__item::after {
    background-size: auto 1.56rem;
  }
  .section-advantage__item:nth-child(1) img {
    width: 1.02rem;
    height: 0.42rem;
  }
  .section-advantage__item:nth-child(2) img {
    width: 0.69rem;
    height: 0.68rem;
  }
  .section-advantage__item:nth-child(3) img {
    width: 0.81rem;
    height: 0.63rem;
  }
  .section-advantage__item:nth-child(3) .content {
    width: 53%;
  }
  .section-advantage__item:nth-child(4) img {
    width: 0.82rem;
    height: 0.98rem;
  }
  .section-advantage__item:nth-child(4) .content {
    width: 86%;
  }
  .section-advantage__item:nth-child(4) .content p + p {
    margin-top: 0.2rem;
  }
  .section-apply {
    padding: 1rem 0;
    text-align: center;
    background-size: 7.5rem 13.78rem;
    background-position: center 40%;
    background-image: url('../images/automotive-apply-m.png');
  }
  .section-apply__title {
    margin: 0 auto 0.6rem auto;
    line-height: 1.28rem;
    font-size: 0.4rem;
  }
  .section-apply__content {
    padding: 0 0.3rem;
    width: 100%;
    text-align: left;
  }
  .section-apply__content dl {
    width: calc(50% - 0.25rem);
    margin: 0 0.5rem 0.3rem 0;
  }
  .section-apply__content dt {
    width: 2.8rem;
    height: 0.88rem;
    line-height: 0.88rem;
    font-size: 0.38rem;
    margin-bottom: 0.3rem;
  }
  .section-apply__content dd {
    font-size: 0.24rem;
    line-height: 0.44rem;
  }
  .section-apply__lists {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    flex-wrap: wrap;
    font-size: 0;
    flex-direction: column;
    padding-top: 5rem;
  }
  .section-apply__item {
    margin: 0 0 0.4rem 0 !important;
  }
  .section-apply__item img {
    width: 6.9rem;
  }
  .section-area {
    padding: 0 0.3rem;
  }
  .section-area__item {
    width: calc(50% - 0.05rem);
    height: 1.87rem;
    margin: 0 0.1rem 0.3rem 0;
    background-size: 100%;
  }
  .section-area__item h3 {
    left: 0.2rem;
    bottom: 0.2rem;
    font-size: 0.24rem;
    color: #ffffff;
  }
  .section-area__item:nth-child(1) h3 {
    font-size: 0.4rem;
    line-height: 1rem;
    padding: 0 0.15rem;
  }
  .section-area__item:nth-child(2n) {
    margin-right: 0;
  }
  .section-area__item:nth-child(3n) {
    margin-right: 0.1rem;
  }
  .section-area__item:last-child {
    margin-right: 0;
  }
  .section-lineup {
    width: 100%;
    margin: 1rem 0 0 0;
    padding: 1rem 0.3rem;
    text-align: center;
  }
  .section-lineup .inner {
    margin-bottom: 0;
  }
  .section-lineup__title {
    margin: 0 auto 0.6rem auto;
    line-height: 1.28rem;
    font-size: 0.4rem;
  }
  .section-lineup__item {
    width: 6.9rem;
    height: 1.2rem;
    background-size: 100%;
    margin: 0 0 0.3rem 0;
  }
  .section-lineup__item:last-child {
    margin-bottom: 0;
  }
  .section-lineup__item:nth-child(1) {
    background-image: url('../images/automotive-lineup-01_m.png');
  }
  .section-lineup__item:nth-child(2) {
    background-image: url('../images/automotive-lineup-02_m.png');
  }
  .section-lineup__item:nth-child(3) {
    background-image: url('../images/automotive-lineup-03_m.png');
  }
  .section-lineup__item:nth-child(4) {
    background-image: url('../images/automotive-lineup-04_m.png');
  }
  .section-lineup__item * {
    display: none;
  }
}